Disseminated candidiasis has become an important infection, particularly in immunocompromised and postoperative patients. Although serologic tests may, in some settings, facilitate a premortem diagnosis, the disease is usually diagnosed by comprehensive clinical evaluation. Detection of the relatively newly recognized peripheral manifestations of candidemia may be vital to early diagnosis: endophthalmitis, osteomyelitis, arthritis, myocarditis, meningitis, and macronodular skin lesions. Studies in patients with chronic mucocutaneous candidiasis and in-vitro manipulations have begun to elucidate normal immune defense mechanisms against Candida, including serum factors, phagocytosis, intracellular killing mechanisms, and lymphocyte function (particularly T cell). The primary drugs for the treatment of disseminated candidiasis are still amphotericin B or amphotericin B plus 5-fluorocytosine; the mainstay of therapy for chronic mucocutaneous candidiasis is amphotericin B. Other antifungals and immune system-stimulating modalities (transfer factor, thymosin, thymus epithelial cell transplantation, and levamisol) may be useful for chronic mucocutaneous candidiasis in some settings and deserve further evaluation.

Severe Candidal Infections: Clinical Perspective, Immune Defense Mechanisms, and Current Concepts of Therapy

Candida species uncommonly cause vertebral osteomyelitis. We present a case of lumbar vertebral osteomyelitis caused by Candida albicans and review 59 cases of candidal vertebral osteomyelitis reported in the literature. The mean age was 50 years, and the lower thoracic or lumbar spine was involved in 95% of patients. Eighty-three percent of patients had back pain for >1 month, 32% presented with fever, and 19% had neurological deficits. The erythrocyte sedimentation rate was elevated in 87% of patients, and blood culture yielded Candida species for 51%. C. albicans was responsible for 62% of cases, Candida tropicalis for 19%, and Candida glabrata for 14%. Risk factors for candidal vertebral osteomyelitis were the presence of a central venous catheter, antibiotic use, immunosuppression, and injection drug use. Medical and surgical therapies were both used, and amphotericin B was the primary antifungal agent. Prognosis was good, with an overall clinical cure rate of 85%.

/pdf/vertebral-osteomyelitis-due-to-candida-species-case-report-3wha27jory.pdf

Vertebral Osteomyelitis due to Candida Species: Case Report and Literature Review

Background. The epidemiology, pathogenesis, clinical manifestations, management, and outcome of Candida osteomyelitis are not well understood.

Methods. Cases of Candida osteomyelitis from 1970 through 2011 were reviewed. Underlying conditions, microbiology, mechanisms of infection, clinical manifestations, antifungal therapy, and outcome were studied in 207 evaluable cases.

Results. Median age was 30 years (range, ≤ 1 month to 88 years) with a >2:1 male:female ratio. Most patients (90%) were not neutropenic. Localizing pain, tenderness, and/or edema were present in 90% of patients. Mechanisms of bone infection followed a pattern of hematogenous dissemination (67%), direct inoculation (25%), and contiguous infection (9%). Coinciding with hematogenous infection, most patients had ≥2 infected bones. When analyzed by age, the most common distribution of infected sites for adults was vertebra (odds ratio [OR], 0.09; 95% confidence interval [CI], .04–.25), rib, and sternum; for pediatric patients (≤18 years) the pattern was femur (OR, 20.6; 95% CI, 8.4–48.1), humerus, then vertebra/ribs. Non-albicans Candida species caused 35% of cases. Bacteria were recovered concomitantly from 12% of cases, underscoring the need for biopsy and/or culture. Candida septic arthritis occurred concomitantly in 21%. Combined surgery and antifungal therapy were used in 48% of cases. The overall complete response rate of Candida osteomyelitis of 32% reflects the difficulty in treating this infection. Relapsed infection, possibly related to inadequate duration of therapy, occurred among 32% who ultimately achieved complete response.

Conclusions. Candida osteomyelitis is being reported with increasing frequency. Localizing symptoms are usually present. Vertebrae are the most common sites in adults vs femora in children. Timely diagnosis of Candida osteomyelitis with extended courses of 6–12 months of antifungal therapy, and surgical intervention, when indicated, may improve outcome.

Candida Osteomyelitis: Analysis of 207 Pediatric and Adult Cases (1970–2011)

Microbiology and antimicrobial therapy of spinal infections.

Fungal infections of the immunocompromised host are being seen with greater frequency than ever before. In addition, a growing list of unusual and unexpected etiologic agents presents a unique and difficult challenge to the clinician and microbiologist. The clinical manifestations of opportunistic fungal infections are often not characteristic and, in many instances, may prevent a rapid diagnosis from being made. Clinical microbiology laboratories should consider any organism as a potential etiologic agent. This requires that all fungi recovered from immunocompromised patients be thoroughly identified and reported so that their clinical significance may be assessed. This review presents a brief discussion of the clinical and laboratory aspects of some fungal infections seen in this important group of patients.

https://cmr.asm.org/content/cmr/1/4/349.full.pdf

Fungal infections of the immunocompromised host: clinical and laboratory aspects.

https://www.amjmed.com/article/0002-9343(75)90325-3/pdf

Hematogenous Candida osteomyelitis: Report of three cases and review of the literature☆

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Hematogenous Candida osteomyelitis: Report of three cases and review of the literature☆